基于LMS自适应滤波器的PMSM谐波抑制方法  

Harmonic Suppression Method of Permanent Magnet Synchronous Motor Based on LMS-ANF

作　　者：朱元[1] 陈冠行 肖明康 孟令 ZHU Yuan;CHEN Guanhang;XIAO Mingkang;MENG Ling(School of Automotive Studies,Tongji University,Shanghai 201800,China)

机构地区：[1]同济大学汽车学院,上海201800

出　　处：《微特电机》2023年第3期1-6,共6页Small & Special Electrical Machines

摘　　要：为有效抑制电流谐波,在原有的PI控制器基础上,基于最小均方自适应滤波器(LMS-ANF)改造控制器结构,使得永磁同步电机特定次电流谐波得到抑制。通过在传统d,q坐标系矢量控制算法的基础上增加自适应滤波器模块,将采样得到的实际电流作为输入,提取、放大实际电流中的特定次谐波电流,通过PI调节器对谐波误差放大后的电流进行调节,得到控制电压,取得了良好的谐波抑制效果。通过仿真以及台架实验,证明了该控制策略对于抑制电流谐波的有效性。In order to achieve the purpose of improving the current control effect of the permanent magnet synchronous motor(PMSM)and suppressing current harmonics,on the basis of the PI controller,the controller structure was improved based on the principle of the least mean square adaptive notch filter(LMS-ANF).And as a result,the specific harmonic current of the magnetic synchronous motor was suppressed.The controller strategy added an ANF module on the basis of the traditional vector control algorithm under d,q axis.It took the actual current sampled as input,extracted and amplified the specific harmonic current in the actual current,and then passed the PI regulator.Harmonic errors were amplified and the current was adjusted to obtain the control voltage,and a good harmonic suppression effect was achieved.Through simulation and experiments,it is proved that the control strategy can effectively suppress the current harmonics.

关 键 词：永磁同步电机 自适应滤波器 最小均方 谐波电流 

分 类 号：TM351[电气工程—电机]